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| PartNumber | TFA9891UK/N1AZ | TFA9891UK/N1/S1Z | TFA9891UK/N1 |
| Description | Audio Amplifiers TFA9891UK/WLCSP49//N1/REEL 7 Q1 DP CIRCUIT ELEMEN | Audio Amplifiers Smart Audio Amplifer | |
| Manufacturer | NXP | NXP | - |
| Product Category | Audio Amplifiers | Audio Amplifiers | - |
| RoHS | Y | Y | - |
| Series | TFA9891 | TFA9891 | - |
| Product | Audio Amplifiers | Audio Amplifiers | - |
| Class | Class-D | Class-D | - |
| Output Power | 3.7 W x 1 at 8 Ohms | 3.7 W x 1 at 8 Ohms | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Type | Bridge Tied Load (BTL) | Bridge Tied Load (BTL) | - |
| Package / Case | WLCSP-49 | WLCSP-49 | - |
| Audio Load Impedance | 8 Ohms | 8 Ohms | - |
| THD plus Noise | 0.03 % | 0.03 % | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | - | - |
| Brand | NXP Semiconductors | NXP Semiconductors | - |
| Number of Channels | 1 Channel | 1 Channel | - |
| Operating Supply Current | 20 mA | 20 mA | - |
| Product Type | Audio Amplifiers | Audio Amplifiers | - |
| Factory Pack Quantity | 2000 | 2000 | - |
| Subcategory | Audio ICs | Audio ICs | - |
| Part # Aliases | 935303418062 | 935360379062 | - |
| Unit Weight | 0.000310 oz | - | - |